アフィリア・サーガ・イースト (Affilia Saga EAST) is the idol group produced by Halko Momoi and Shikura Chiyomaru, Executive Producer of 5pb (a Tokyo company dedicated to video games, animation, etc). Both compose the songs for the group.

Affiliate Saga East comes from the line of cafes / restaurants Affilia Saga (created by Chiyomaru). The world works like Affiliate Saga RPG regular customers can not only enjoy the food, but win levels or "ranks" through personalized cards. The waitresses are students of the magic from the realm of Affilia that study(work) in the different magical schools (branches). Affilia Saga currently has branches in Osaka, Nagoya, Odaiba, Roppongi, Ueno, and of course, Ikebukuro.

The Girls of Affilia Saga EAST all work in different locations inside Tokyo (Ueno, Ikebukuro, Roppongi). Outside of the Café franchise Afilia Saga East are just like any other Idol unit, they perform lives, have fan events, music videos radio show, merchandise sales and a television show on Sky Perfect TV.

^i'll try to do another lucky find for kurumi , you know, in that ustream interview she seemed to be the favorite by far... oh and favorite? not sure yet but the girl with glasses is pretty (and kohime, the shortest one, is way too cute, she must be under 14 at least)

lol either way, there is no info about their ages in the official website because (amazingly) it lacks of the year in all the profiles... but yeah she is the mascot and she probes it in this video after all Afilia Saga is a school for magicians or something like that.